An invoice shall have an invoice number (cbc:ID). (EN16931 BR-02)
Why ZATCA invoices fail rule ZATCA-HDR-001 (ERROR) and how to fix it: An invoice shall have an invoice number (cbc:ID). (EN16931 BR-02)
What this rule checks
An invoice shall have an invoice number (cbc:ID). (EN16931 BR-02)
Affected element: Invoice › Id.
Standard: ZATCA (KSA) — EN 16931 + BR-KSA. Severity: ERROR.
Why your invoice is rejected
ZATCA validates EN 16931 and BR-KSA business rules before clearance/reporting. When this rule fails the invoice is rejected — fix it before you submit.
How to fix it
Add Invoice › Id — it is mandatory for a ZATCA invoice.
Verify before you send
Upload your ZATCA UBL invoice to the validator to confirm this rule — and every other EN 16931 / BR-KSA rule — passes before it reaches ZATCA.